I buy the kit of 4 quarts and get 2.5 cars out of it. it takes about 1.5 - 2 quarts to do a full underside. 1 qt will do just the fenderwells. be sure to scuff the body in the wheel wells before you shoot it. cheers, SRP

 

Mike,
Only spray the plastic bedliner if the body has been sun cured 15 days or so, or at least 30 plus in a very warm building. If the glass is still new (less than 60 days)it may still be gassing off and you might wind up with delaminating of the liner. The type/brand also has a great part of the quality of your application.
NOTE: Bedliner is just that, it's a protective FILM not the greatest in adhesion qualities.
grumpy

 

Thanks Ken. One clarification question - When you say "scuff" the underside, how much are you talking about? The glass is very rough and scuffing it would really only be the high spots. Do I take all the high-spots down until it's almost smooth?! Seems like that would put me 1/2 way through the glass mat.

Grumpy. Good points about adhesion. My body is a year old now and spent many days outside this summer, so I think I'm okay. But you did make me wonder what it means to "scuff" the underside before I spray the liner...

-Mike

 

So how much of the body does a guy want to cover with bedliner?

 

when I say scuff, I use a DA tilted pretty good with 40 grit and make a pass or two across the glass, just enough to break open the surface. don't try to sand down the inside, that would be a pita. cheers, SRP

 

Thanks Ken, I think I understand now.

John,

I think the general idea is to do at least the wheel well areas to prevent the star-shaped rock chips on the topside of your body. However, I really like the uniform "ripple" effect of this bedliner, so I might do the whole underside including the hood and trunk areas...

-Mike